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Finding the Fourth Proportional to 105,061.44, 144,867.04 and 85,881.60

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Solution

The fourth proportional to 105,061.44, 144,867.04 and 85,881.60 is: 118,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,061.44 : 144,867.04 = 85,881.60 : x
  2. Step 2: Convert to fraction form
    105,061.44/144,867.04 = 85,881.60/x
  3. Step 3: Cross multiply
    105,061.44x = 144,867.04 × 85,881.60
  4. Step 4: Simplify right side
    105,061.44x = 12,441,413,182.46
  5. Step 5: Solve for x
    x = 12,441,413,182.46/105,061.44
  6. Step 6: Final answer
    x = 118,420.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.